From this point we crossed to another sand hill that continued northerly further than we could see, having the Desert on either hand.

Our horses beginning to flag, I halted at five on the side of the ridge, near a small puddle that had only water enough for them to drink off at once.
The morning of the 20th was bitterly cold, with the wind at S.S.E., and I cannot help thinking that there are extensive waters in some parts of the in terior, over which it came: the thermometer stood at 42 degrees.

We started on a course of 335 degrees for a distant sandy peak rising above the general line of the horizon.

At a mile, one of the horses fortunately got bogged in a little narrow channel just like that in the grassy plain; I say fortunately, for we might otherwise have passed the water it contained without knowing it, so completely was it shaded.

In looking along the channel more closely, we discovered a little pool about three yards long and one broad, but deep.